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Copper residue-slag based cementing material,preparation method and applications thereof

A technology for slag and copper slag, applied in the field of inorganic cementitious material preparation, can solve the problems of occupying land, environmental pollution, low utilization rate of copper slag, etc., and achieve the effect of enhancing tensile strength

Inactive Publication Date: 2020-01-07
JIANGXI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the utilization rate of copper slag is low, and a large amount of copper slag has not been reused and is piled up in the area where the copper smelting factory is located, occupying a large amount of land, causing environmental pollution and affecting production development

Method used

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  • Copper residue-slag based cementing material,preparation method and applications thereof
  • Copper residue-slag based cementing material,preparation method and applications thereof
  • Copper residue-slag based cementing material,preparation method and applications thereof

Examples

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Effect test

preparation example Construction

[0036] The preparation method of above-mentioned copper slag-slag-based cementitious material comprises:

[0037] Step 1: After mixing and stirring copper slag powder, slag powder, quicklime, modification aid and light absorbing agent, add alkali activator and deionized water to form the first slurry, wherein the modification aid includes carbonization At least one of silicon, boron nitride, aluminum oxide or zinc oxide, the light absorbing agent includes chromium oxide, cadmium selenide, ferric oxide, titanium dioxide, lead sulfide, cobalt oxide and cadmium sulfide;

[0038] Step 2: Continue to add sodium hydroxide, sodium bicarbonate, Portland cement and deionized water to the first slurry, stir evenly and let it stand for 15-25 minutes for foaming treatment to obtain the second slurry;

[0039] Step 3: After adding heat-absorbing materials and fibers to the second slurry, continue stirring to obtain a third slurry, pour the third slurry into a mold and vibrate to form a rou...

Embodiment 1

[0055] A copper slag-slag-based cementitious material and a preparation method thereof, the cementitious material is composed of the following components in parts by weight, and the cementitious material comprises:

[0056] 200 parts of copper slag powder, 400 parts of slag powder, 250 parts of alkali activator (including 100 parts of potassium hydroxide and 150 parts of calcium hydroxide), 30 parts of quicklime, 50 parts of Portland cement, 30 parts of heat-absorbing material (including graphite 10 parts of alkene and 15 parts of graphite), 20 parts of fiber (including 10 parts of fluororubber fiber and 10 parts of polypropylene fiber); 10 parts of modification additives (including 5 parts of silicon carbide and 5 parts of boron nitride) and 5 parts of light absorbing agent share.

[0057] The preparation method of the copper slag-slag-based cementitious material in embodiment one is as follows:

[0058] Step 1: After mixing and stirring 200 parts of copper slag powder, 400 ...

Embodiment 2

[0068] A copper slag-slag-based cementitious material and a preparation method thereof, the cementitious material is composed of the following components in parts by weight, and the cementitious material comprises:

[0069] 300 parts of copper slag powder, 600 parts of slag powder, 350 parts of alkali activator (including 150 parts of sodium hydroxide and 200 parts of calcium hydroxide), 50 parts of quicklime, 75 parts of Portland cement, 60 parts of heat-absorbing material (including graphite 30 parts of alkene and 30 parts of graphite), 30 parts of fiber (including 15 parts of fluororubber fiber and 15 parts of polypropylene fiber); 20 parts of modification additives (including 10 parts of silicon carbide and 10 parts of boron nitride) and 10 parts of light absorbing agent share.

[0070] The preparation method of the copper slag-slag-based cementitious material in embodiment two is as follows:

[0071] Step 1: After mixing and stirring 300 parts of copper slag powder, 600 ...

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Abstract

The invention relates to a copper residue-slag based cementing material, a preparation method and applications thereof, wherein the copper residue-slag based cementing material comprises copper residue powder, slag powder, an alkali activator, quick lime, Portland cement, a heat absorbing material, fiber, a modifying aid and a light absorbing agent, the alkali activatorat least comprises one selected from an alkali substance, a silicate substance and an alkali metal salt substance, the heat absorbing material comprises graphene, graphite, an acrylic acid modified epoxy resin and 2,4-dihydroxybenzophenone, chromic nitrate and a titanate coupling agent, the fiber at least comprises one selected from fluororubber fiber, polypropylene fiber and asbestos fiber, the modifying aid at least comprises one selected from silicon carbide, boron nitride, aluminum oxide and zinc oxide, and the light absorbing agent comprises chromium oxide, cadmium selenide, ferric oxide, titanium dioxide, lead sulfide, cobalt oxide and cadmium sulfide. The cementing material provided by the invention has low hydration heat and good tensile and compressive strength, and meets the requirements of practical application.

Description

technical field [0001] The invention relates to the technical field of preparation of inorganic cementitious materials, in particular to a copper slag-slag-based cementitious material, a preparation method and an application. Background technique [0002] Cement is one of the materials with the largest amount of application and the widest application range among inorganic cementitious materials. It is widely used in the construction of buildings, roads, dams, airports and other projects, and is an important basic material for national economic construction. The production of cement consumes a lot of resources and energy, and the dust and CO emitted during the production process 2 Such harmful substances will cause serious pollution to the environment. The development and utilization of new green cementitious materials can reduce resource and energy consumption and reduce environmental pollution, which has important practical and long-term significance for the sustainable dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/153C04B7/19C04B7/36C04B28/08C04B38/02
CPCC04B7/1535C04B7/19C04B7/36C04B28/08C04B18/24C04B18/08C04B22/064C04B22/04C04B2103/48C04B38/02Y02P40/10
Inventor 宋军伟朱街禄彭小英刘方华
Owner JIANGXI UNIV OF TECH
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